23921620195 has 16 divisors (see below), whose sum is σ = 32395425120. Its totient is φ = 16797625600.

The previous prime is 23921620187. The next prime is 23921620211. The reversal of 23921620195 is 59102612932.

It is not a de Polignac number, because 23921620195 - 2³ = 23921620187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7497346 + ... + 7500535.

It is an arithmetic number, because the mean of its divisors is an integer number (2024714070).

Almost surely, 2^23921620195 is an apocalyptic number.

23921620195 is a deficient number, since it is larger than the sum of its proper divisors (8473804925).

23921620195 is a wasteful number, since it uses less digits than its factorization.

23921620195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14997926.

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 23921620195 in words is "twenty-three billion, nine hundred twenty-one million, six hundred twenty thousand, one hundred ninety-five".